XML 62 R50.htm IDEA: XBRL DOCUMENT v3.21.1
Inventory (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Schedule of inventory    
Raw materials $ 631,019 $ 791,558
Work-in-process 1,438,482 1,207,457
Finished goods 23,013 519,241
Total $ 2,092,514 $ 2,518,256